Cultivator.



vPatented May 27. |902.l

No. 70:,004.l

J. B. BABTHOLMEW.

C U L T I V ATO R.

(Application mea :une s, 189e.)

2 Sheets-Sheet I.

(N Model.)

No. V70|,ou4. Paten-red may 27, |902.

, J. s. AnTHuLoMEw.

CULTIVATOR.

(Application led. June 6, 1896.)

(No Model.) v 2 Sheets-Sheet 2.

` position by dotted lines.

Nrrnn raras -J'OllN ll. BR'IIOLOMEW', OF PEORIA, ILLINOIS, ASSIGNOR MANIY FA CTURING COll/IPANY,

y 'ro Av1-:mf or PEORIA, ILLINOIS. y

p ou LTivAToa.

sPscrFIcAcrloN forming para dated May 27', 1902. 594,581. (No modell) To 1U 'lr/mm. it 711/11/ concern:

Be it known that I, JOHN B. BARTHOLOMEW, a citizen of the United States, residing at Peoria,A in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Cnltivators; and I dodeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference' being had to the' accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figure l is a longitudinalsection of a cultivator embodying 1ny improvements, the parts being represented'in working position by full lines and in their raised or inactive Fig. 2 is a cross-section taken on a line .1' m of Fig. l. Fig. 3 is a detached perspective View of the spring lifting devices and portions of adjacent parts, the spring being conventionally indicated. Fig. 4- is a vertical cross-section of the sliding bar M looking toward `the lever, to which one end of the spring is connected.

In the drawings, AA indicate the groundwheels; Il, the crank-axle; C, the tongue; D D, the longitudinal frame-bars, and D' the seat. These may be of any well-known or of any preferred form.

n J I I E E indicate the beams ordrag-bars,to winch` are attached the standards or Shanks for the shovels. They the frame, preferably by means of clips G, secured to the downward and inward turned parts f of the cross-bar at F. The forward pivots of the beams or drag-bars are shown The beams are to be supported, lifted, and lowered by means of the devices now to be described.

.I is a suspension-bar pivotally connectedto a beam or drag-bar E and extending up tothe v are pivotally connected with i upper end of the bar formed of a tube or pipeclamped at its lower fend in the bifurcated support J', whichis secured to the pivot-plate J 2, and the upper end is provided with a ferrule having a projection formed with a hookjand an aperture j?. The hook or finger H of theiaforesaid barH is inserted in the aperturej, whereby a flexible i but sufiiciently firm connection between the parts H and J-is providedl and at the same time they are allowed to bequicklyseparated without requiringthe removal'o'f bolts or pins.

The bars H and J are provided with a regulator or holder, which is designated as a whole by K, to limit their backward movements and the downward movements of the beam when in its workingposition. As shown, this comprises a regulating connection or chain 7c, and in order to properly support the lower end of the chain it is secured toa bar 7o', the lower end of which is secured in the way to be described'.

M is a bar pivoted at m to the above-men` tioned short arm 7L of the standard or u right lever-arm H. Ward, as shown, and has its front end held in a guideway at m. This guide can be provided by means of. a clip o, secured to the frame-bars or secured to the brace-rod O, which extends upward from the wheel-spindlel of the crank-axle B to the frame-bar D.

N is a lever pivoted at n to thefront end l of the sliding lever N is provided with a hook yn?, and its l lower part va3 is pivoted at n4 to the abovementioned rod it', secured to the stop-chain 7c.-

With the above-described parts of the regulating devices for limiting the backward movement of the bars II and' .I there is combined a lifting-spring ing the operator non-operative position and which is desigmechanism for assistspring l and an adj listing-bar Z', pivoted at Z2 to the radius-bar'H. The front end of the spring [engages with the hook n2 of the lever N, and the rear end is adjustably connected with the bar Z', which is provided with a 'plurality of teeth liwhich constitute attachments or supports for this end of the spring.

At 'a5 there is a stop interposed between the The bar M extends for# in liftinfr the beam into ther n. Preferably n is l bar M. The upperI part n of Ico lever N and the sliding bar M, preferabiyby forming a shoulder or projection on the lever,

V which impinges upon the upper end'of the bar,

This stop m operates, as one of its functions, to determine the normal working positions ot the bars H and .I and the beam E, and hence the normaldepth to which the plows or.culti- Vators will dig, and yet permits the said parts 4tobe moved by the operator to cause either a deeper or more shallow digging or cultivation, as desired. The force Aof the spring when the parts are inthe position shown in full lines, Fig. l, is sufficient to rock the lever N into position with the stop m5 in engage# ment with the bar D, with the result that the force of the spring, which tends to pull forward the bars H and J' and to lift the beam,

V ,is relieved, and they therefore tend to oper t ate steadily in the position indicated.

i As soon as the operatorrelieves the pressure on the stirrup the. parts are by the spring restored to the position shown in full lines in Fig. `1. it will be observed that there is pro -vided a positive stop which serves to limit the extent to which the beam may be forced downward. This consists of the clip o, which is so disposed that the lever N at or near its pivotal connection with the bar M engages therewith after the bar has moved backward a short distance and positi velyprevents further movement inthat direction, for it will .be seen that when the beam is forced downward it rocks backward the radius-bar II, and this intnr carries backward the bar M and the lever N until, as has been described, the stop 0 prevents further movement of these parts in the directions first indicated. The temporarylifting ofthe beam from its normal working position in order to cause more shallow digging or to .pass'obstnuctions may be performed bythe operator in the usual way and need not ,be described in detail,

Another function of the stop a5 from that described is to render the connection between the spring and the outer or forward end of the bar M sufficiently rigid during the time the spring is operating as part of the lifting mechanism to assist in raising the beam into the inoperative or riding position. (indicated by dotted lines in Fig, l.) It will be observed that during euch operation of the spring the stopn5 is forced and held into engagement' with'he bar M, so that theforce ot' the forward end of the spring is transmitted directly backward to the bar M and through it tb the radius-bar.

l of the character herein When the beamsare in their normal' workf;

ing position, the following facts will also be;

vendee observed: The radiusbar H is inclined up ward and backward somewhat, andthe pivot m of the sliding bar M is up slightly above the line which joins the pivots n and c', and hence the sliding bar M cannot act under the influence ofthe spring Z.to bring forward the parts H and J, as it is exerting. a pressure vward to lift the beam. If the plow-beam E be elevated, as bythe operator lifting upon the handle at j untiLthe parts H and J have as.- surned'the position shown in dotted lines, Fig. l, it will be seen that the pivot m has been rocked downward by the short arm h' far enough to pass the line between the pivotsc' and n 'and that thereupon the springZ will act in a twofold manner: first, to draw directly forward yon the radins-bar H at the point Z2 above the pivot t', and, secondly, to push backward at the point 'm through the lever N and the bar M, said point m being,l

new below the pivot il, the stop at a5 at this time making the parts N and M practically rigid, and the two supports or attachments for the spring, one for each end thereof, being movable and soconnected with the beamsuspending devices/that the spring becomes double-acting. In brief, it is merely necessary for the operator to impart a slight initial lift to the handlej, after which the spring andthe parts .interposed between it and/the beam automatically accomplish the rest of the lifting movement of the beam and carry tially the position shown in dotted lines in Fig. 1. VJhen, inversely, the beams are to be returned to their working position, itis -merely necessary for the operator to reach forward from his seat and pull backward with a force notv great upon the handle j', whereupon t'he radius-har'H rocksv hack toward the position in full ilines in Fig. l, and as soon as it brings the pivot fm above the line of the pivot i' the beam will be held in working position.

It willbe understood that as many beamsl and sets of lifting E4and holding devices may be employed as are desired,

Ido not limit .myself to all of the'detail parts which I have shown for the purpose'of illustratingan entire machine, as there can be variations in severalrespects withoutde'- parting from all of the featuresol my im provemen'ts, "To those acquainted with such implements numerous Ways will suggest themselves of applying the very desirable advantages incident-"to ay doubleacting spring presented which will not necessitate nee the details shown and'which i for some reasons prefer, for it will III.;V

L; es

' particular suspension -bar, link, hand-lever, or mast J 'the rock-lever or vertically adjustable cultivator a these features properly The regulatngdevice at K is adjustable to regulate or vary the positions of the shovelpoints when at work-as, forinstance, by having a series of perforations or hooks at one end fofsaid device, such as those in the lower end of t'lg lever N, with one or another of 'which the end of the bar t" may be engaged, or by engagihg one or another of the links of the chain 7i: with the hookyl at the upper end of the rla dils-barn As will be seen, eitherone of these `ajljvusttnents operates o i the spring I; As the beam approaches its uppermost or riding` position the pivot at]h2 at the fre'efe'd' of the `radius-bar becomes direetly aliiled with th" pivot 'L' for the heel of saidyradius-bar and with the pivot at J2 at the bottom of the suspension-rod pivotj2 reaches and passes this -tlcadline necting devices upon such rear part of the This combination broadly I do not herewith claim; but I have claimed it in my other application pending herewith, No. 594,580, iiled June 6, 1896. In my said earlier application I provide for accomplishingl some of the functions attainable by my presl ent invention by having two springs, one to .serve principally as a liftingfspring to assist in counterbalancing the gang-beam vwhile itv is being raised above the ground, and the as a regulator for the at work in the soil. In the present caseboth of these more orless independent and disthe weight of the beam and other parts acts tinguishable functions can be and are perto hold and draw down the free end of the formed by one spring. The relative arrangel radius-bar andV keep the parts in their'posiment of the parts is such that the power of tion of rest with the suspension-rod bearing the regulator becomes greater and ,great-,eras against the aXle.\ The forwardly-curved ferthe power of the lifterlessens, and vice versa, rule or terminal at the upperend of the susn by which expedient the operator without unpension-rod enables the pivot at'j:I2 to reach due eort can quickly shift the shovels in the dead-line described. The advance of the radius-bar toward the deadline constantly lessens the tension of tho spring-lifter. This loss is corrected4 by reason of the direction of the pull and lthe point of attachment for the lifter at the radiusarm. Being applied near the heel of'the radies-bar, the short leverage ofy the lifter is exerted at best advantage during the traverse ofl the radius-bar past the i ertical. Hence the counterbalancing effect of the lifter remains practically uniform throughout the shift. forced into the 'soil from their normal working lines it is the spring-regulator, comprising the chain at 7c, which comes more and radius-arm by means of a more into play. As the beamis lowered the Ch herein atK, with its long leverage upon the radevices of the character rc lerred to beingillusdlus-bar exerts an increasingY power, lwhereas trated in the patent, No.` 579,182, to M. Sattthe lifter, although distended, exertsits force ley, and while I do not herein claim specificwith lessening effect.

ally acompression-spring-thatis, one which I am ,further aware that it has been pro- Works expansively forward and backas a` posed to employahorizontally-arranged conitA understood that traction lifting-spring so disposed that it can come within the scope of be used either for lifting or for cushioning or my lnvention in so far as they provide for exregulating the short oscillations vertically of erting spring-power in substantially the way the shovels when at work, said spring having,y in this connection I combined with it a mast or suspcnsion-r0d Iam aware of substitute acompression-spring,r arranged to backward and au arm extending forward 'om a rock-lever or radius hinge-lever similar 1n certain respects to that herein at N, said lever being,r connected with ing downward and forward from the suspension-rod, a short radil-isba'orlug-like level' extending forward from the cross axle-bar, and an arm or short bar pivoted to the luglike 'radius-bar and connected to the spring?, such devices being shown in the patent to l.`

E. Waterman, No. 579,036, and I regard this as another way of embodying some of the features of my inventionwnamely, those inciiustead of through the medium of the radiusbar Il. Hence, so far as the novel features of my invention are concerned, I do not eX- clude such matters of inversion or change,

As the extending up from the beams, arod extend-- IOO On the centrar f, if the shovels are ISC dentto having a horizontal lifting-spring combined with parts which permit it when the beam is in working position to act as a resil- -ient stop, regulator, or cushion and .permit it after it starts up from the working position to exertan increased efficiency or lpower in lifting the beam to its place of rest.

1. In a cultivator of the hammock type, the combination of the main frame, the beam hinged thereto, a radius-bar or lever pivoted to and extending up from the frame, va suscombination of the main frame, the beam hinged'thereto, a radius-bar or lever pivoted to and extending upfromthe frame, a suspension-bar connecting the radius-bar and beam, a lifting-spring connected with the radius-bar, and means whereby said spring is y also operatively joined with the beam through 'combination ofthe-main frame, the beam.

another connection than its inst-mentioned connection `with the radius-bar, to act as a regulator. l

3. In a cnltivator of the hammock type, the

hinged thereto, a radins-bar or lever pivoted `to and extending up from the frame, a susssl pension-bar connecting the vradius bar\\.and beam, allifting-spring connected with theradins-bar, and means whereby said spring-isconnected operatively with the radius-bar at a point above its first-mentioned connection to act as a regulator.

4.- In a cultivator, the combination ,of the main frame, a beam hinged thereto, a radiusbar pivoted to and extending up from thev frame, a suspension-bar, regulating devices comprising a spring for controlling the position of the beam while'working, and means whereby said spring is also operatively connected with the radius-bar to serve as a lifting-spring.

5. In a cultivator, thecombination of the main frame,a beam vertically adj ustablerelative to the frame, the upwardly-extending radius-bar. pivotally connected with'the frame, means -for suspending the plow-beam from the radius-bar at a point above the` main frame,

a regulating connection united with the radius-bar, comprising a spring and an inter'- .mediate movable member which limits the backward movement of theradius-bar, and another connection between said movable member and lthe beam whereby the spring also serves as a lifting-spring.

6. In a cultiva-tor, the combination ofthe main frame, a plow-beam vertically adjustablerelative thereto, a pivoted radius-bar rising'from the main frame, means for suspending the beam from the radins-bar, and

-alregulator comprising a spring and pivoted,

lever connected with the radius-bar for conl 7 s said spring being also' arranged to exert lifttrolling the backwardmovement of the-same,

ing` force upon the beam.

7. Thecombination of thefmain'framathe beam vertically adjustable relatively thereto, V

the pivoted radius bar extendingl upward from the. frame, means for suspending the beam from-the radius-bar, a regulating-spring connected with the radius-bar.' to limit its vbackward movement, said connection comprising a pivoted lever,.a stop which limits the regulating action of the spring, and 'means whereby said spring is'connect'ed with -the beam to exert a lifting force upon the same.

8. The combination of the main frame, the

beam vertically adjustable relative thereto, a pivoted radius-bar extending upward from the beam, means for suspending the beam from the radius-bar, a connection with the f y radius-bar for limiting its backward movement, a lifting-spring for the beamfmeans whereby said spring is united with said regulating con nection to control the vertical movementfof the beam when in working positionv and apositive stop for limiting the'downward movemlht of the beam beyond a cer- -tain point.

' 9, The combination of the main frame, the 7' plow beam vertically adjustable relative thereto, a' radius-bar .pivoted to the main frame, means for suspending the beam from the radius-bar, a connection for the beam and theradius-bar for controlling theirmovement" when in Working'position, a spring for elevat- 'ing the beam, means connecting the spring and said regulating connection whereby the. latter is'permitted -to-yield, and means for locking th`e radius-bar against the forward action of the spring when the parts are in working position.' l l 10. The combination of'the main frame, a beamvertically adjustable relative thereto, a pivoted radius-barextending upward from the frame, means for suspending the beam from theradius-bar, a connection for the radius-bar and the beam when in working position, a lock which'tends tohold `the parts in working position but yieldable'to permit them to be'lifted by the operator, anda'spring connected both with the'said regulating connection andthe said lock. j 1l. The combination ofthe main f'ramethe vbeam vertically adjust-able relative thereto,

.the radius bar, means for suspending` the beam' from the radius-bar, a lifting-spring connected with'the radius-bar aboveits pivot,

means connecting the spring with the radins- .bar below its pivot whereby each end. of the sprinor has an operative connection with the' beamto lift the same,.the connection for limiting the movement of the beam when in working position, and means joining the said regulating-connection with the spring whereby `said rear suspending froma point above the main frame, and connected to the beam near the rear end thereof, a spring exerting force in one direction through the said rearsuspending devices to elevate the beam, means moving in the opposite direction and 4actuated by the spring to assist in elevating the beam, auf', .t stop or holder for preventing the beam from moving downward beyond the desired limit, substantially as set forth. g

13. The combination of the main frame, the beam vertically adjustable relative to the means connected to the beam, near the rear end thereof, Kfor suspending it from spring exerting force from one di' its ends, through the ldevices, to elevate the beam, a sliding bar connected with the other end of the spring, and also with the beaming position, and also serving,when the beam is being lifted4 to transmit to the suspending devices the force of the spring from that end with which it is connected, to assist in liftv ing thebeam, substantially as set forth.

upon the radius-bar to lift the beam, a slidi devices, through 14. Thecombination, ina cultivator, of the verticallyadjustable beam,

main frame, the vertically-adjustable beam,

the means for. suspending the rear end of the for transmitting from said spring power in the opposite direction alsofor lifting the beam, and the holder K connected with the said power-transmitting means,`substantially as set forth.

1K6. Thecombination of the main frame, the ally-adjustable beam, a radius-bar, meansfor suspending the rear end of the beam from the radius-bar, a spring. drawing ing bar M connected with the radius-bar, a holder K to limit the downward movements of the beam when in working position, and a lever N pivotally connected with the bar M, to which lever are connected both the spring and the regulator, substantially as set forth.

17. The combination of the main frame, the

laterally-swinging,vertically-adj ustable, cultivat'or-beam, beam-suspending devices, a

, sprmgga connection interposed between lone end of the spring and the beam-suspending which the spring is adapted to exert a lifting action on the beam when it is rising, and a connection between the other end of tho spring and the beam-suspending l devices, adapted to regulate the beam when tion,substantially as set forth.

the main frame, the

in Working posl kf 18. The combination-of laterally-swi ngi-ng, vertically-adj ustable, cultivator-beam,the beam-suspending device ex tending upward and swinging forward when the beam rises, and a regulating spring, having devices situated operatively between one end thereof and 'the beam lthrough which the spring tends to hold the beam in working position, and devices interposed between the other end thereof and the beanl-sl'lspending devices through which the spring acts to lift the beam to its elevated position, substantially as set forth.- A

' 19. The combination ofthe main frame, the laterally-swingiug,verticallyadj ustable, cultivator-beam, a combined lifting and regulatingspring, devices interposed between one end of said spring and the beam-suspending device, through which the spring acts to lift tho beam from its working position, and a chain interposed between the other end-of the spring and the beam-suspending devices and through which said spring acts to hold the beam ,in its workingl position, substantially as set forth.

20. The combination of tlie mainfi'rame, the lateralIy-swinging,vertically-adjustable, cultivator-beam, the radius-bar on the frame, the suspending rod or bar for the beam, the spring connected to said radius-bar, a supplemental vibratable lever connected to the spring, and means connected to said supplemental lever forholclingit in position against theitension of the spring, su bstantially as set `forth.

2l. rBhe combination ofthe main frame, the laterally-swinging,vertically-adjustable, cultivator-beam, the radius-bar the spring connected to the radiusbar,a lever in front of the radius-bar and connected to the spring, saidlever being adapted to I vibrate and to move the forward end of the spring forward, substantially as set forth.

suspending rod, the spring connected to the radius-bar, the vibratable lever in front of the radius-bar having one end connected to the spring and adj action of the spring,

In a cultivator of the class described, the combination of the radius-bar, thebeanlsuspending rod, the spring,a chain connected receiving power from the spring, a swinging lever connected to the end of the spring, and a toothed bar for varying the position of the spring, substantially as set forth. i

In a cultivator of the class described, the combination of the beam, the beam-sus` 'pending devices, consisting of the radius-bar vand `the beam-suspending rod, the beam-liftcombined vlifting and roo IIO`

ing springconnected at one end to the said" .sition and to elevate it therefrom to its nppermost position, substantially as set forth. 126. 4In a cultivator of the class described, the combination with the beam thereof, of the radius-bar, the spring connected with the radius-bar near its fulcrn ni for lifting'the beam,

vthe connection-interposed between the radius-bar and the said spring, and means for varyingr the connection between the regulating devices and the spring, whereby the pull of thespring upon such devices is adjusted,

l substantially asset forthy 27. In a cultivator ofthe class described, the combination with the beam thereof, of a radius-bar having two arms projecting in difforensi directions from its axis, a spring, means'forconnecting said spring with one of the arms of said radius-bar, and means connecting the said spring with the otherarm of said bar, one ofsaid connecting means transmitting'power from the spring for sustaining the beam in working positiomand the other transmitting power from the spring for lifting the beam away from working position,

substantially Aas set forth.

the ombination'with the beam thereof, oi' a' radius-bar having two arms projecting in different directions from its axis, a spring, means for connecting said spring'with one of the arms of said radins-bar, means for 'coni necting the said spring with the second arm yofthe radius-bar, and another and separate connection between the spring and the second arm' of the radius-bar, substantially as set forth.-

2S. In a cnltivator of the class described,

Zenone 29.' In acultivator, the `combination of the mainframe, the beam pivoted thereto near lits 'forward' end, the beam-suspending de- `vices connected with the rear portion of the beam and consisting ofA a radius-bar pivoted to the :frameand extendingnpward, and va snspensio-n-rod between the radius-bar and the beam, a spring which serves to regulate the depthto which the shovels carried-by the v beam shall dig, a stop device arranged to determine the normal depth. of di,g'ging,.,bi/1t,k

which may be forced to permit .deeperfdigging, and a positive stop for limiting the depression of the beam, substantially as setv forth. y

30. The combination of th`e frame, the verticaily-adjns'table beam, a radius-bar, means for suspending the beam from-the said bar, a 'f lifting-spring and locking means interposed between the radius-barv and the end of-the spring remote from said bar, and arranged to lool; or hold the radins-bar againstforward movement when the parts .are inv'working position, such lock being yieldable or breakvable by the action of the operator in moving the parts to riding position, substantially as set forth.

31. The combinationfof the frame, the ver-"f ticallyp-adjustable beam, means for suspendingv the beam from the frame, a lifting-spring, a movable connection between one end ofthe spring and the beam-suspending devices said connection consisting of two parts or mem bers hinged or pivoted togethema stop whereby said parts are rendered rigidfrelativeto ser' each other, whereby the springmay transmit its-force through them to the beam, andrconnections between one of the said pivoted or hinged parts'and the beamsnspendingnde# `vices and arranged to move said parte relative to each other upon their hinge or'pivot against the action of the spring,- substanf tially as set forth.

.In testimony whereof I affix 111;; signature in presence of two witnesses. JOHN B. BARTIIOLQMEWI,

v Vtfitnesses: l

H. D, KELLENBACH, E. M.` 'VooRHEns 

